Unexplained weight loss coupled with constant thirst are both symptoms of Diabetes (please see the related link). You should go and speak to a doctor urgently as diabetes is potentially life threatening.
However, sudden unexplained weight loss can also be a symptom of a number of other underlying conditions, some of them potentially very serious / life threatening.
Other conditions which can cause unexplained weight loss:
N.B. This is by no means an exhaustive list.
If you have experienced unexplained weight loss then you should go and speak to a doctor.
water
sometimes. if they are thirsty.
Drink some water.
He was thirsty!
No you do not get thirsty in less you need a lot of water to drink
Drink a lot of water before class or bring your own water bottle Plain water is the best other juices make you thirsty
No, you are better to slowly drink water or an isotonic drink.
People drink smoothies because there thirsty?
Because they are thirsty.
When you are thirsty.
when your thirsty
Depends on how thirsty you are.